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Nursery habitat use patterns of the scalloped hammerhead shark in coastal areas of the central Mexican Pacific
Nursery habitat use patterns of the scalloped hammerhead shark, Sphyrna lewini, in coastal areas of the central Mexican Pacific Antonio Corgos, Alejandro Rosende-Pereiro ABSTRACT: This work aimed to characterize the nursery habitat use patterns of the scalloped hammerhead shark, Sphyrna lewini (SPL), in coastal areas of Jalisco and Colima, through the birth pattern, space–time distribution
First evidence of regional migration of the copper shark the Southwest Atlantic
First evidence of regional migration of the copper shark Carcharhinus brachyurus (Günther, 1870) in the Southwest Atlantic Juan M. Cuevas, Mirta L. García, Sebastián Gómez, Gustavo E. Chiaramonte, ABSTRACT: Regional migration of the copper shark Carcharhinus brachyurus was recorded for the first time in the Southwest Atlantic (SWA) from Argentina (latitude: –38.1037, longitude: –57.5371) to
Economic Value and Public Perceptions of Whale Shark Tourism in Nosy Be
Economic Value and Public Perceptions of Whale Shark Tourism in Nosy Be, Madagascar Ziegler, Jackie A.; Diamant, Stella; Pierce, Simon J.; Bennett, Rhett; Kiszka, Jeremy J. ABSTRACT: Nosy Be in northwestern Madagascar is home to a globally important whale shark (Rhincodon typus) aggregation and a growing whale shark tourism industry. However, whale sharks are not
Bacterial community dynamics during embryonic development of the little skate
Bacterial community dynamics during embryonic development of the little skate (Leucoraja erinacea) Katelyn Mika, Alexander S Okamoto, Neil H Shubin, David B Mark Welch ABSTRACT: Background: Microbial transmission from parent to offspring is hypothesized to be widespread in vertebrates. However, evidence for this is limited as many evolutionarily important clades remain unexamined. There is currently
State of Shark and Ray Genomics in an Era of Extinction
State of Shark and Ray Genomics in an Era of Extinction Jessica Pearce, Matthew W. Fraser, Ana M. M. Sequeira, Parwinder Kaur ABSTRACT: Chondrichthyan species (sharks, rays, skates, and chimeras) are a class of high ecological, economic, and cultural significance, and yet they are the most threatened taxa in the marine environment. The creation of
Species substitution and mislabeling in the swordfish market in Santiago, Chile
Species substitution and mislabeling in the swordfish (Xiphias gladius) market in Santiago, Chile: Implications in shark conservation Pablo Dufflocq, María Angélica Larraín, Cristian Araneda ABSTRACT: Food fraud and the conservation and trade of threatened species are topics of high concern. Some shark species are considered in this category by IUCN and CITES, and can enter
Observations of sharks at Europa Island
Observations of sharks (Elasmobranchii) at Europa Island, a remote marine protected area important for shark conservation in the southern Mozambique Channel Mireille M. M. Guillaume, Bernard Séret ABSTRACT: Sharks have declined worldwide and remote sanctuaries are becoming crucial for shark conservation. The southwest Indian Ocean is a hotspot of both terrestrial and marine biodiversity mostly
Feeding ecology has shaped the evolution of modern sharks
Feeding ecology has shaped the evolution of modern sharks Mohamad Bazzi, Nicolás E. Campione, Benjamin P. Kear, Catalina Pimiento, Per E. Ahlberg SUMMARY: Sharks are iconic predators in today’s oceans, yet their modern diversity has ancient origins. In particular, present hypotheses suggest that a combination of mass extinction, global climate change, and competition has regulated
Papua New Guinea National Plan of Action on Sharks and Rays 2021 – 2024
Papua New Guinea National Plan of Action on Sharks and Rays 2021 – 2024 Government of Papua New Guinea (2021) PDF-DOWNLOAD
Mercury and Cadmium Concentrations in Muscle Tissue of the Blue Shark
Mercury and Cadmium Concentrations in Muscle Tissue of the Blue Shark (Prionace glauca) in the Central Eastern Pacific Ocean Rubén D Castro-Rendón, Marcos D Calle-Morán, Isabel García-Arévalo, Alfredo Ordiano-Flores, Felipe Galván-Magaña ABSTRACT: Blue sharks (Prionace glauca) are an important resource in Ecuador’s fisheries; however, biological and ecological information of this species in the area is
Elasmobranch Responses to Experimental Warming, Acidification, and Oxygen Loss
Elasmobranch Responses to Experimental Warming, Acidification, and Oxygen Loss—A Meta-Analysis Catarina Pereira Santos, Eduardo Sampaio, Beatriz P. Pereira, Maria Rita Pegado, Francisco O. Borges, Carolyn R. Wheeler, Ian A. Bouyoucos, Jodie L. Rummer, Catarina Frazão Santos, Rui Rosa ABSTRACT: Despite the long evolutionary history of this group, the challenges brought by the Anthropocene have been
Whale shark rhodopsin adapted to its vertically wide-ranging lifestyle
Whale shark rhodopsin adapted to its vertically wide-ranging lifestyle Kazuaki Yamaguchi, Mitsumasa Koyanagi, Keiichi Sato, Akihisa Terakita, Shigehiro Kuraku ABSTRACT: Spectral tuning of visual pigments often facilitates adaptation to new environments, and it is intriguing to study the visual ecology of pelagic sharks with expanded habitats. The whale shark, which dives into the deep sea
Preparation and Evaluation of the Curative Effect of Blue Shark Skin Collagen Composite Gel
Preparation and Evaluation of the Curative Effect of Blue Shark (Prionace glauca) Skin Collagen Composite Gel in a Rat Oral Ulcers Model Huang, Meineng; Jiang, Sheng; Chen, Tong; Han, Xu; Yang, Xinyu; Quan, Zhizen; Yuan, Yang; Li, Jing; Deng, Kehan; Li, Tiejun ; Cao, Zhizhong; Wei, Yibo ; ABSTRACT: Objective: To evaluate the curative effect
Demon Monsters or Misunderstood Casualties?
Demon Monsters or Misunderstood Casualties? Writing about Sharks in Australia Donna Lee Brien ABSTRACT: Over the past century, many books for general readers have styled sharks as “monsters of the deep” (Steele). In recent decades, however, at least some writers have also turned to representing how sharks are seriously threatened by human activities. At a
The sharks and rays of Palau
The sharks and rays of Palau: biological diversity, status, and social and cultural dimensions Katelyn Hari, Vanessa Jaiteh B, Andrew Chin ABSTRACT: Anthropogenic pressures have been increasing on shark and ray populations globally, and their conservation and management can be compromised by lack of information on their diversity and status of species. This study presents